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Security Engineer, Applied Research & Labs

Design and build security tooling at Cloudflare while engaging with customers through labs and workshops.

Location
Hybrid
Compensation
Not disclosed
Level
mid
Type
full time · Hybrid

Posted by employer 2 days ago

First seen on Joblaze 2 days ago

Last verified on the company career page 18 hours ago

What you'll build

  • Design and build agentic security workflows and tooling
  • Release internal harnesses and orchestration workflows as open-source
  • Define the technical scope and sequencing of labs
  • Build and operate lab infrastructure
  • Run hands-on workshops for customers

Must have

  • 4+ years in software engineering
  • Experience building interactive labs or developer training environments
  • Proficiency in TypeScript, Python, or a comparable language
  • Hands-on experience building LLM-based systems
  • Working knowledge of application and infrastructure security

Nice to have

  • Hands-on security background in any domain
  • Experience with the Cloudflare Agents SDK
  • Experience with developer education or technical certification programs
  • Maintainer of an open-source security project
  • Experience speaking at security or developer conferences

Practical constraints

  • 15-25% travel for customer workshops and conferences
  • Occasional work outside standard hours

AI in the day-to-day

Leverage AI to ship faster and improve security tooling.

Requirements

Experience
4+ years
Visa
No sponsorship (stated in posting)

Not disclosed in this posting: compensation.

Joblaze summary

In this role, the Security Engineer focuses on designing and implementing security tooling and workflows for Cloudflare's security teams, while also creating open-source reference implementations and conducting hands-on workshops. Key skills include proficiency in TypeScript or Python, experience with distributed systems, and a solid understanding of application security. This position is ideal for someone with over four years of software engineering experience, particularly in building interactive learning platforms. The role is embedded within a collaborative team that values innovation and practical solutions.

Joblaze insights

  • Listed 2 days ago — first seen on Joblaze October 14, 2026. Last confirmed on Cloudflare's careers page October 16, 2026.
  • Python appears in 40.8% of 196 comparable mid security roles in United States; TypeScript appears in 3.6% of 196 comparable mid security roles in United States.

Quick facts

Is the Security Engineer, Applied Research & Labs role remote?
It's hybrid — Cloudflare expects some on-site time in Hybrid.
How much experience is required?
At least 4 years of relevant experience for this Security Engineer, Applied Research & Labs role.
Where is the role based?
Cloudflare is hiring for this position in Hybrid.
What's the tech stack?
Joblaze extracted these technologies from the posting: AI Gateway, Cloudflare Workers, Durable Objects, Python, TypeScript, Vectorize.
What seniority level is this role?
Cloudflare targets mid-level candidates for this position.
Is this full-time or contract?
Full-time for this Security Engineer, Applied Research & Labs role at Cloudflare.

From the original posting

About Us

Available Locations: Austin, TX

What You'll Do

Cloudflare is seeking a Security Engineer to design and build agentic security tooling for Cloudflare Security, and to release that work as open-source reference implementations, interactive labs, and technical workshops for customers and partners.

This role sits in the Applied Research & Labs function within the Office of the CSO. You will work embedded with Cloudflare's security teams, build on Cloudflare's Developer Platform, and represent the team's security & engineering work externally.

Security Tooling & Reference Implementations

  • Design and build agentic security workflows and tooling for Cloudflare Security, including multi-agent orchestration, tool integration, and evaluation harnesses
  • Release internal harnesses, skill definitions, and orchestration workflows as documented open-source reference implementations
  • Implement on Cloudflare Workers, Durable Objects, Workflows, Workers AI, AI Gateway, and the Agents SDK

Labs & Workshops

  • Define the technical scope and sequencing of each lab, including the failure modes participants will hit and the scaffolding they need
  • Build and operate the lab infrastructure: per-participant isolation, automated provisioning, state reset, and teardown
  • Run hands-on workshops where customers and partners build and deploy the tooling themselves
  • Document and package workshop formats so other Cloudflare engineers can deliver them

External Engagement

  • Present Cloudflare's agentic security architecture through customer briefings and conference talks
  • Author technical deep dives and architecture write-ups that establish Cloudflare Security as a recognized voice in the security community
  • Partner with Product and Engineering to align external technical content with the roadmap

Required Qualifications

  • 4+ years in software engineering, shipping and operating production systems
  • Demonstrated experience building interactive labs, hands-on learning platforms, or developer training environments, including the infrastructure behind them
  • Strong design judgment for technical learning experiences, including scope, sequencing, and knowing what to leave out
  • Proficiency in TypeScript, Python, or a comparable language, with production experience in distributed or event-driven systems
  • Hands-on experience building LLM-based systems, including agent orchestration, tool use, context engineering, and evaluation
  • Experience with Cloudflare Workers, Durable Objects, Workflows, Workers AI, AI Gateway, and Vectorize, or an equivalent serverless stack
  • Working knowledge of application and infrastructure security, including common vulnerability classes and secure development practices
  • Published technical writing, conference talks, or open-source contributions

Bonus Points

  • Hands-on security background in any domain
  • Experience with the Cloudflare Agents SDK
  • Experience with developer education, technical certification programs, or developer relations
  • Maintainer or significant contributor to an open-source security or developer tooling project
  • Experience speaking at security or developer conferences

Location & Travel

  • Based in Austin, TX
  • 15-25% travel for customer workshops, conferences, and other Cloudflare offices
  • Occasional work outside standard hours to support sessions across EMEA and APAC time zones

What Makes Cloudflare Special?

Standard company text repeated across Cloudflare's postings is omitted here.

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